The Z366-250-B10 is a direct-fit bucket dimensioned for 12 × 6–10 mL Vacutainer-style tubes, sized for the Hermle Z366-250-HC swing-out rotor on the Z366 / Z366-K chassis 4-place configuration. Sold as a 2-pack. Distinct from the bucket-plus-insert approach (Z366-250 + Z366-250-A10 insert delivers 32 × 10 mL Vacutainer per cycle), the B10 direct-fit bucket on the HC rotor variant delivers 48 × 10 mL Vacutainer tubes per cycle, 50% higher throughput. The Z366-250-HC chassis-rotor configuration also runs at deep cold-chain temperature (−2 °C at max speed).
Key Specifications
| SKU | Z366-250-B10 |
| Type | Direct-fit bucket (12 × 6–10 mL Vacutainer-style) |
| Pack quantity | 2 buckets per SKU (full 4-bucket configuration takes 2 units = 4 buckets) |
| Per-bucket capacity | 12 × 6–10 mL Vacutainer-style tubes |
| Per-cycle throughput (full configuration) | 48 × 10 mL Vacutainer tubes per cycle |
| Tube format | 6–10 mL Vacutainer-style blood collection (16 mm OD, 75–100 mm length) |
| Compatible rotor | Z366-250-HC swing-out rotor (HC = high-capacity variant of Z366-250) |
| Compatible chassis | Z366, Z366-K (refrigerated), and -E voltage variants |
| Max. operating speed | 4,500 rpm at 3,735 × g maximum |
| Max. radius | 16.5 cm (0.1 cm radius correction with this bucket) |
| Temperature at max speed (Z366-K refrigerated) | −2 °C |
| Geometry | Swing-out (0–90°): flat sediment surface |
| List price | $562 (2-pack) |
Direct-Fit Bucket vs Bucket-Plus-Insert: Configuration Choice
The Z366 chassis offers two paths for swing-out 10 mL Vacutainer workflows:
| Configuration | Per cycle | Approach |
| Z366-250-B10 (this SKU) | 48 × 10 mL Vacutainer | Direct-fit bucket on Z366-250-HC rotor (dedicated, 50% higher throughput) |
| Z366-250 + Z366-250-A10 insert | 32 × 10 mL Vacutainer | Bucket + insert on Z366-250 rotor (bucket holds other inserts too) |
Pick the B10 when higher per-cycle throughput matters and the lab's primary workflow is 10 mL Vacutainer-style clinical-blood-component prep. Pick the bucket+insert path when the bucket needs to serve multiple tube/bottle formats.
Compatibility & When to Order This SKU
Bucket pairing: Z366-250-HC rotor only. Order this SKU when:
- Commissioning a Z366-250-HC for institutional 10 mL Vacutainer clinical-blood-component workflow. Order 2 units for full 4-bucket configuration (48 tubes/cycle).
- Adding higher-throughput 10 mL Vacutainer capability to an existing Z366 / Z366-K install that currently uses the bucket+insert configuration on the Z366-250 rotor.
- Replacement buckets if a current set is damaged or worn.
Application Profile
Institutional clinical-blood-component prep at 48 tubes per cycle: hospital reference labs and large clinical-research recruitment workflows that need higher per-cycle throughput than the bucket+insert configuration delivers.
Deep cold-chain clinical-blood prep at scale. When the workflow needs the Z366-K's −2 °C cold-chain integrity at high per-cycle throughput.
Biobank intake at institutional throughput. Biobank workflows handling 10 mL primary collection tubes at scale, where the 48-tube-per-cycle throughput matches institutional intake volume.
Hospital chemistry and hematology prep at scale. Clinical chemistry and hematology bench prep at institutional throughput on the Z366-K platform.
Clinical-research recruitment at scale. Recruiting-phase studies that draw 10 mL Vacutainer tubes at high per-day volume on the deep cold-chain chassis.
Veterinary clinical at scale. Institutional veterinary practice or veterinary-research lab throughput in 10 mL Vacutainer-style format.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must be installed for symmetric balance at 4,500 rpm.
Per-bucket symmetric loading. Within each bucket, the 12 tubes should be balanced symmetrically. Pair tubes by mass.
Tube cap confirmation. All Vacutainer rubber stoppers must be fully seated before spinning at 4,500 rpm.
Z366-250-B10 ships as 2 buckets. 6–10 mL Vacutainer-style tubes are operator-supplied (commodity clinical phlebotomy supplies).
Required for operation:
- Z366-250-HC rotor body (sold separately) or already in inventory
- For full 4-bucket configuration: order 2 units of this SKU
Confirm at quote: rotor pairing (Z366-250-HC in inventory), chassis pairing (Z366 or Z366-K), tube format (6–10 mL Vacutainer-style), pack count (2 packs for full 4-bucket configuration = 48 tubes/cycle), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the buckets.
Z366-250-HC direct-fit bucket family (Z366 / Z366-K chassis):
- Z366-250-B10 (this product): 12 × 6–10 mL Vacutainer (48/cycle)
- Z366-250-B57: 14 × 1.8–7 mL pediatric Vacutainer (56/cycle)
- Z366-250-B15: 10 × 15 mL conical (40/cycle)
- Z366-250-B50: 4 × 50 mL conical (16/cycle)
- Z366-250-B250: 1 × 250 mL bottle (4/cycle)
Match the direct-fit bucket to the workflow's primary tube/bottle format. The Z366-250-HC rotor is the higher-throughput sister to the bucket-insert Z366-250 rotor on the same chassis.
